一种联合ORC的新型液态空气储能系统热力特性

doi:10.12028/j.issn.2095-4239.2019.0046

储能科学与技术 ›› 2019, Vol. 8 ›› Issue (5): 880-885.doi: 10.12028/j.issn.2095-4239.2019.0046

一种联合ORC的新型液态空气储能系统热力特性

白文刚, 张纯, 张磊, 杨玉, 张一帆, 李红智

西安热工研究院有限公司, 陕西西安 710054

收稿日期:2019-03-29 修回日期:2019-04-19 出版日期:2019-09-01 发布日期:2019-04-26
通讯作者: 白文刚(1986-),男,博士,工程师,主要研究方向液态空气储能技术,E-mail:mydreambai@163.com。
作者简介:白文刚(1986-),男,博士,工程师,主要研究方向液态空气储能技术,E-mail:mydreambai@163.com。
基金资助:
西安热工研究院科研基金项目（ZD-18-TYK13）。

Thermodynamic analysis of novel hybrid liquid air energy storage system combined with ORC

BAI Wengang, ZHANG Chun, ZHANG Lei, YANG Yu, ZHANG Yifan, LI Hongzhi

Xi'an Thermal Power Research Institute Co., Ltd., Xi'an 710054, Shaanxi, China

Received:2019-03-29 Revised:2019-04-19 Online:2019-09-01 Published:2019-04-26

摘要/Abstract

摘要： 为了进一步提高液态空气储能（LAES）的系统效率，提出了一种利用有机朗肯循环（ORC）回收利用LAES放电过程中余冷和余热的新型LAES系统。采用Aspen HYSYS V8.4流程模拟方法研究了系统中不同设备性能参数对LAES系统热力特性的影响。结果表明：低温泵等熵效率和换热器夹点温度对LAES系统效率的影响较小；透平等熵效率和燃烧室出口温度对LAES系统效率的影响非常显著，LAES系统效率随透平等熵效率和燃烧室出口温度的增加而显著增加；LAES系统效率随低温泵出口压力的升高而增加，但增加幅度会逐渐减小。该研究结果可为LAES系统的工程应用和效率提升提供重要参考和依据。

关键词: 储能, 液态空气储能, 热力特性, 有机朗肯循环, Aspen HYSYS

Abstract: A novel hybrid liquid air energy storage system(LAES) combined with an organic Rankine cycle (ORC) was proposed to improve the efficiency of a conventional LAES system. The influence of different equipment performance parameters on the thermodynamic characteristics of LAES system was studied using Aspen HYSYS V8.4 process simulation method. The results show that:the influence of isentropic efficiency of cryo-pump and heat exchanger pinch point temperature on LAES system efficiency are small. On the other hand, the effects of isentropic efficiency of turbine and combustor outlet temperature are significant. The LAES system efficiency increases significantly with the increase of the isentropic efficiency of turbine and the combustor outlet temperature. The LAES system efficiency also increases with the increase of the cryo-pump outlet pressure, but the increasing range gradually decreases. The research results can provide important reference and basis for the engineering application and efficiency improvement of LAES system.

Key words: energy storage, liquid air energy storage, thermodynamic characteristic, organic Rankine cycle, Aspen HYSYS

中图分类号:

TK02

白文刚, 张纯, 张磊, 杨玉, 张一帆, 李红智. 一种联合ORC的新型液态空气储能系统热力特性[J]. 储能科学与技术, 2019, 8(5): 880-885.

BAI Wengang, ZHANG Chun, ZHANG Lei, YANG Yu, ZHANG Yifan, LI Hongzhi. Thermodynamic analysis of novel hybrid liquid air energy storage system combined with ORC[J]. Energy Storage Science and Technology, 2019, 8(5): 880-885.

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一种联合ORC的新型液态空气储能系统热力特性

Thermodynamic analysis of novel hybrid liquid air energy storage system combined with ORC

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